20630967

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 32431104

約数和(自身を除く): 11800137

約数列:

[1, 3, 7, 21, 71, 101, 137, 213, 303, 411, 497, 707, 959, 1491, 2121, 2877, 7171, 9727, 13837, 21513, 29181, 41511, 50197, 68089, 96859, 150591, 204267, 290577, 982427, 2947281, 6876989, 20630967]

約数ペア:

[(1, 20630967), (3, 6876989), (7, 2947281), (21, 982427), (71, 290577), (101, 204267), (137, 150591), (213, 96859), (303, 68089), (411, 50197), (497, 41511), (707, 29181), (959, 21513), (1491, 13837), (2121, 9727), (2877, 7171)]